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var showTriggers = new Array();
function registerShow(sectId,showFunc) {
showTriggers[sectId] = showFunc;
}
function hasClass(ele,cls) {
return ele.className.match(new RegExp('(\\s|^)'+cls+'(\\s|$)'));
}
function addClass(ele,cls) {
if (!this.hasClass(ele,cls)) ele.className += " "+cls;
}
function removeClass(ele,cls) {
if (hasClass(ele,cls)) {
var reg = new RegExp('(\\s|^)'+cls+'(\\s|$)');
ele.className=ele.className.replace(reg,' ');
}
}
function toggleVisibility(linkObj) {
var base = linkObj.getAttribute('id');
var summary = document.getElementById(base + '-summary');
var content = document.getElementById(base + '-content');
var trigger = document.getElementById(base + '-trigger');
if ( hasClass(linkObj,'closed') ) {
summary.style.display = 'none';
content.style.display = 'block';
trigger.src = trigger.src.substring(0,trigger.src.length-10)+'open.png';
removeClass(linkObj,'closed');
addClass(linkObj,'opened');
if (showTriggers[base]) { showTriggers[base](); }
} else if ( hasClass(linkObj,'opened') ) {
summary.style.display = 'block';
content.style.display = 'none';
trigger.src = trigger.src.substring(0,trigger.src.length-8)+'closed.png';
removeClass(linkObj,'opened');
addClass(linkObj,'closed');
}
return false;
}
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